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# Copyright (c) 2011-2014, Tenable Network Security
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require 'builder'

module Nasl
  class Tree < ::Array
    def all(cls)
      (@all[Nasl.const_get(cls).to_s] ||= [])
    end

    def register(node)
      (@all[node.class.name] ||= []) << node
      @parent.register(node) unless @parent.nil?
    end

    def initialize(parent=nil)
      @parent = parent
      @all = {}
    end

    def to_s
      text = ''

      xml = Builder::XmlMarkup.new(:target=>text, :indent=>2)

      if empty?
        xml.tree
      else
        xml.tree { self.map { |node| node.to_xml(xml) } }
      end

      text
    end
  end
end
